以 Facebook 为例，该公司表示，在该链接被重用之前，数据可能会一直存在，通常是“在很短的时间之后”，不过很明显，这段时间的长度可能很不确定。

In the case of Facebook, the company says data may hang around until the URL in question is reused, which is usually "after a short period of time", though obviously that time can vary considerably.

youdao

我开始更清楚地看自己了，不过我还不确定从那儿要去哪里。

I was starting to see myself more clearly, but I wasn't sure where to go from there.

youdao

不过，她并不确定自己是否会参加下一届奥运会。

But she is not sure if she will go to the next Olympics.

youdao

But is this something that you will sit there patiently, waiting for, within unknowing?

不过您会坐在那里,在不确定的情况下耐心等待艺术的发生么？

普林斯顿公开课 - 人性课程节选

And then our drop date is normally, I'm not exactly sure when, but it's actually probably in November,

然后退课的日子通常是，我不确定什么时候，不过其实大概是十一月，

对于返校日 - SpeakingMax英语口语达人

.. I guess, unfortunately, it is for... there needs to be a number put somewhere, like, I'm not sure what that number would be, but I do agree that there could possibly be a number put on the human life.

我觉得，不幸的是。,有时确实需要标价，不过我不确定具体数字，但我确实认同,人的生命也许可以被标价。

耶鲁公开课 - 公正课程节选